News
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Solutions to common faults of PDH optical transceiver
Permanent failure: For permanent faults, a loop can be used at one end, and the other end can be displayed from the switch or judged section by section and layer by layer with a transmission analyzer. 1. Transmission alarms appear in pairs. For example, if RJA (remote alarm) occurs on the A si...Read more -
What is the standard of PDH optical transceiver?
In the digital communication transmission system, there are two digital optical transceiver series, one is called “Plesiochronous Digital Hierarchy” (Plesiochronous Digital Hierarchy), referred to as PDH optical transceiver; the other is called “Synchronous Digital HierarchyR...Read more -
How to prevent lightning damage in structure cabling system
As we all know, optical fiber is non-conductive and can be protected from inrush current, and optical cable also has good protection performance, the metal components in the optical cable have a high insulation value to the ground, and the lightning current is not easy to enter the optical cable....Read more -
How to identify the pros and cons of the switch?
Function is the most direct indicator For general access layer switches, simple QoS guarantees, security mechanisms, support for network management strategies, spanning tree protocols and VLANs are all essential functions, however, if you analyze carefully, some functions can be further subdivide...Read more -
What are the differences between industrial switches and industrial 4G routers?
Industrial switches are also called industrial Ethernet switches, which are Ethernet switch equipment used in the field of industrial control, because of the adopted network standard, its openness, wide application, low price, and transparent and unified TCP/IP protocol, Ethernet has become the m...Read more -
Is the housing design of industrial switches important?
Industrial switches are generally used in places where the environment is relatively harsh, such as factories. In order to make industrial switches better, the design of the housing of industrial switches plays a vital role. The housing of industrial switches can better protect the use of industr...Read more -
How to judge the physical failure of the industrial switch?
The failures of general industrial switches can be roughly divided into: soft performance failures and physical failures. Soft performance failures generally refer to problems in the R&D and design of industrial switches. Today, the editor of JHA Technology will tell you how to judge the phys...Read more -
What do you know about photoelectric multiplexing port?
Combo interface is also called photoelectric multiplexing interface, which is composed of two Ethernet ports (one optical port and one electrical port)on the switch panel. The combo electrical port and its corresponding optical port are logically photoelectric multiplexed. The user can choose one...Read more -
Precautions for industrial-grade fiber media converter
There are many different classifications of industrial-grade fiber media converters. In practice, most attention is focused on the categories distinguished by different optical connectors: SC-type industrial-grade fiber media converters and FC/ST-type industrial-grade fiber media converters. W...Read more -
Do you know how to choose the right SFP transceiver?
The SFP transceiver is one of the best fiber optics on the market. It’s regarded as the “modern workhorse” of the networking world because it is easily interchangeable, repaired, and replaced in a variety of designs. The hot-pluggable capability alone makes these devices desirable to designers in...Read more -
What is Ring Type Fiber Video Converter?
Traditional fiber video converters are used for point-to-point applications. The fiber video converter is installed at both ends of the optical fiber, such as the most commonly used optical fiber Ethernet transceiver, which uses optical fiber to connect the computer network at both ends. And in o...Read more -
Basic concept of optical module
1.Laser category A laser is the most central component of an optical module that injects current into a semiconductor material and emits laser light through photon oscillations and gains in the cavity. At present, the most commonly used lasers are FP and DFB lasers. The difference is that the sem...Read more
